https://www.vulture.com/article/dead-to-me-james-marsden-steve-ben-twins.html

Marsden had to adjust his physicality to make sure his Ben, Steve's twin brother, came across as a different person. Marsden realized when returning to the set for Season 2 that a lot was riding on his new character. “I saw Christina (Applegate), and I hadn’t seen her in ages,” he says. “She gave me a big hug and then her first words out of her mouth were, as she looked directly into my eyes, ‘Uh, so twin, huh?’ I was like, ‘Yeah, I’m going to give it the old college try.’ She’s like, ‘No pressure, Marsden, but the season is kind of depending on you.’”